Exams › IBPS PO › Quantitative Aptitude
The ratio of milk and water is 5:3. If 10 L of milk and 7 L of water are added, the new ratio becomes 8:5. Find the initial quantity of milk.
- 45
- 30
- 24
- 40
Correct answer: 30
Solution
Let initial milk and water be 5x and 3x. After adding 10 L milk and 7 L water, the ratio becomes \((5x+10):(3x+7)=8:5\). Solving gives x = 6, so initial milk = 5x = 30 L.
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